Show and count categories in OpenCart - php

Question

I have this issue with OpenCart where I want to display my shop categories in a custom way and count the parent categories.
I currently modified the code so far that I get the following output
<ul id="catOpContainer">
<li id="switchCatOp1">Parent Cat 1
<ul id="catOp1">
<li>Child cat 1</li>
Child Cat 2</li>
</ul>
</li>
Parent Cat 2
<ul id="catOp1">
<li>Child cat 1</li>
Child cat 2</li>
</ul>
</li>
Parent Cat 3</li>
</ul>
</ul>
instead of the desired
<ul id="catOpContainer">
<li id="switchCatOp1">Parent Cat 1
<ul id="catOp1">
<li>Child Cat 1</li>
<li>Child Cat 2</li>
</ul>
</li>
<li id="switchCatOp2">Parent Cat 2
<ul id="catOp2">
<li>Child Cat 1</li>
<li>Child Cat 2</li>
<li>Child Cat 3</li>
</ul>
</li>
</ul>
It's obvious that there are some missing elements, but I have no clue about a possible solution. I also don't have a clue how to count the parent categories, so that I can toggle the subcategories.
I currently have the following code snippet:
<?php
class ControllerModuleCategory extends Controller {
protected $category_id = 0;
protected $path = array();
protected function index() {
$this->language->load('module/category');
$this->data['heading_title'] = $this->language->get('heading_title');
$this->load->model('catalog/category');
$this->load->model('tool/seo_url');
if (isset($this->request->get['path'])) {
$this->path = explode('_', $this->request->get['path']);
$this->category_id = end($this->path);
}
$this->data['category'] = $this->getCategories(0);
$this->id = 'category';
if (file_exists(DIR_TEMPLATE . $this->config->get('config_template') . '/template/module/category.tpl')) {
$this->template = $this->config->get('config_template') . '/template/module/category.tpl';
} else {
$this->template = 'default/template/module/category.tpl';
}
$this->render();
}
protected function getCategories($parent_id, $current_path = '') {
$category_id = array_shift($this->path);
$output = '';
$results = $this->model_catalog_category->getCategories($parent_id);
if ($results) {
if ($parent_id == 0) {
$output .= '<li id="switchCatOp1">';
} else {
$output .= '<ul id="catOp1"><li>';
}
}
foreach ($results as $result) {
if (!$current_path) {
$new_path = $result['category_id'];
} else {
$new_path = $current_path . '_' . $result['category_id'];
}
$output .= '';
$children = '';
// if ($category_id == $result['category_id']) {
$children = $this->getCategories($result['category_id'], $new_path);
// }
if ($this->category_id == $result['category_id']) {
$output .= '<a href="' . $this->model_tool_seo_url->rewrite(HTTP_SERVER . 'index.php?route=product/category&path=' . $new_path) . '">' . $result['name'] . '</a>';
} else {
$output .= '<a href="' . $this->model_tool_seo_url->rewrite(HTTP_SERVER . 'index.php?route=product/category&path=' . $new_path) . '">' . $result['name'] . '</a>';
}
$output .= $children;
$output .= '</li>';
}
if ($results) {
$output .= '</ul>';
}
return $output;
}
}
?>
I really hope someone knows a solution.

Answer 1

You do not need to customize controller. It has already Parent and child category listing, Just open the category module, and past below code.
<div class="box-category">
<ul>
<?php foreach ($categories as $category) { ?>
<li>
<?php if ($category['category_id'] == $category_id) { ?>
<?php echo $category['name']; ?>
<?php } else { ?>
<?php echo $category['name']; ?>
<?php } ?>
<?php if ($category['children']) { ?>
<ul>
<?php foreach ($category['children'] as $child) { ?>
<li>
<?php if ($child['category_id'] == $child_id) { ?>
<?php echo $child['name']; ?>
<?php } else { ?>
<?php echo $child['name']; ?>
<?php } ?>
</li>
<?php } ?>
</ul>
<?php } ?>
</li>
<?php } ?>
</ul>
</div>